Originally Posted by rwan
when i ride, the gear train makes this faint, grinding noise. i can never figure out why. i feel like i'm doing everything right (and have poured TONS of money into trying to make it perfect), but still no love. chainline looks damn perfect, i bought the right hub w/ the right BB and sugino RD cranks. chain is lubed and in good condition, cog is (was) pristine.
have you tried putting a ton of thick lube (i.e. finish line all weather) on the chain? as in, over-lube it... worst that would happen is a dirty chain, best that could happen is silence.